How do you describe the transformation of energy in a pendulum as it moves back and forth?

As a pendulum swings back and forth, it undergoes a continuous transformation between potential and kinetic energy. At its highest points, the pendulum has maximum potential energy and minimal kinetic energy. As it descends, potential energy converts to kinetic energy, reaching maximum kinetic energy and minimal potential energy at the lowest point. This cycle repeats as the pendulum swings, illustrating the conservation of mechanical energy in an ideal system.